DE102005054144A1 - Gassensor - Google Patents
Gassensor Download PDFInfo
- Publication number
- DE102005054144A1 DE102005054144A1 DE200510054144 DE102005054144A DE102005054144A1 DE 102005054144 A1 DE102005054144 A1 DE 102005054144A1 DE 200510054144 DE200510054144 DE 200510054144 DE 102005054144 A DE102005054144 A DE 102005054144A DE 102005054144 A1 DE102005054144 A1 DE 102005054144A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- voltage
- exhaust gas
- diffusion barrier
- outer electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
- F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
- G01N27/4071—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure
- G01N27/4072—Cells and probes with solid electrolytes for investigating or analysing gases using sensor elements of laminated structure characterized by the diffusion barrier
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/417—Systems using cells, i.e. more than one cell and probes with solid electrolytes
- G01N27/419—Measuring voltages or currents with a combination of oxygen pumping cells and oxygen concentration cells
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
Ein Gassensor, insbesondere Lambda-Sonde, für die Bestimmung der Sauerstoffkonzentration im Abgas einer mit einem Kraftstoff-Luft-Gemisch betriebenen Brennkraftmaschine, umfassend eine Pumpzelle mit einer dem Abgas ausgesetzten Außenelektrode (150), mit einer in einem vom Abgas durch eine erste Diffusionsbarriere (120) getrennten Messraum (130) angeordneten Innenelektrode (140) und mit einer elektronischen Schaltung (190) zur Erzeugung einer zwischen Außenelektrode (150) und Innenelektrode (140) anliegenden Spannung (U¶pump¶) und zur Messung und Auswertung eines sich dabei einstellenden Pumpstroms (I¶pump¶), um daraus auf die Zusammensetzung des Kraftstoff-Luft-Gemisches zu schließen, ist dadurch gekennzeichnet, dass die Außenelektrode (150) in einem eigenen Messvolumen (230) angeordnet ist, das durch eine weitere, zweite Diffusionsbarriere (220) getrennt ist, deren Diffusionskoeffizient sich von dem der ersten Diffusionsbarriere (120) unterscheidet, und dass die Schaltung (190) zur vorzugsweise wiederholten Umpolung der Spannung (U¶pump¶) ausgebildet ist.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510054144 DE102005054144A1 (de) | 2005-11-14 | 2005-11-14 | Gassensor |
JP2008539383A JP4709905B2 (ja) | 2005-11-14 | 2006-10-16 | ガス・センサ |
US12/093,681 US8828205B2 (en) | 2005-11-14 | 2006-10-16 | Gas sensor |
EP06807290A EP1952136A1 (de) | 2005-11-14 | 2006-10-16 | Gassensor |
PCT/EP2006/067432 WO2007054421A1 (de) | 2005-11-14 | 2006-10-16 | Gassensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510054144 DE102005054144A1 (de) | 2005-11-14 | 2005-11-14 | Gassensor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005054144A1 true DE102005054144A1 (de) | 2007-05-16 |
Family
ID=37594971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510054144 Withdrawn DE102005054144A1 (de) | 2005-11-14 | 2005-11-14 | Gassensor |
Country Status (5)
Country | Link |
---|---|
US (1) | US8828205B2 (de) |
EP (1) | EP1952136A1 (de) |
JP (1) | JP4709905B2 (de) |
DE (1) | DE102005054144A1 (de) |
WO (1) | WO2007054421A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007061947A1 (de) | 2007-12-21 | 2009-06-25 | Robert Bosch Gmbh | Schneller Breitband-Abgassensor |
DE102007062800A1 (de) | 2007-12-27 | 2009-07-02 | Robert Bosch Gmbh | Verfahren zur Bestimmung einer Gaszusammensetzung in einem Messgasraum |
DE102009029690A1 (de) | 2008-09-24 | 2010-03-25 | Robert Bosch Gmbh | Breitband-Sensorelement mit eindeutiger Messkurve |
DE102009026418B4 (de) | 2009-05-22 | 2023-07-13 | Robert Bosch Gmbh | Konditionierung eines Sensorelements in einem Brennerprüferstand bei mindestens 1000°C und Konditionierungsstrom |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006062056A1 (de) * | 2006-12-29 | 2008-07-03 | Robert Bosch Gmbh | Sensorelement mit unterdrückter Fettgasreaktion |
DE102009045446A1 (de) * | 2009-10-07 | 2011-04-14 | Robert Bosch Gmbh | Lambdasonden-Betriebsverfahren und Vorrichtung zur Durchführung des Verfahrens |
DE102010029776A1 (de) * | 2010-06-08 | 2011-12-08 | Robert Bosch Gmbh | Verfahren zum Erkennen des Typs von Lambdasonden |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60171447A (ja) * | 1984-02-17 | 1985-09-04 | Hitachi Ltd | 空燃比検出方法 |
JPS6147553A (ja) | 1984-08-13 | 1986-03-08 | Hitachi Ltd | 空燃比センサ |
JP2744088B2 (ja) * | 1989-10-13 | 1998-04-28 | 日本特殊陶業株式会社 | 空燃比センサ |
DE4226540A1 (de) * | 1992-08-11 | 1994-04-21 | Bosch Gmbh Robert | Polarographischer Sensor |
JPH0682417A (ja) * | 1992-09-03 | 1994-03-22 | Unisia Jecs Corp | 空燃比センサ |
DE4447033C2 (de) * | 1994-12-28 | 1998-04-30 | Bosch Gmbh Robert | Meßfühler zur Bestimmung des Sauerstoffgehaltes in Gasgemischen |
KR19980067017A (ko) | 1997-01-30 | 1998-10-15 | 이형도 | 3원촉매 열화진단용 제한전류형 센서 |
US6228252B1 (en) * | 1997-02-13 | 2001-05-08 | Ngk Spark Plug Co. Ltd. | Apparatus for detecting concentration of nitrogen oxide |
DE19805023A1 (de) | 1998-02-09 | 1999-08-12 | Bosch Gmbh Robert | Elektrochemischer Meßfühler |
JP3879606B2 (ja) * | 2001-12-18 | 2007-02-14 | 株式会社デンソー | ガス検出装置 |
DE10216724C1 (de) * | 2002-04-16 | 2003-10-09 | Bosch Gmbh Robert | Verfahren zum Betreiben einer Breitband-Lamdasonde |
DE10220783B4 (de) * | 2002-05-10 | 2004-07-01 | Robert Bosch Gmbh | Meßfühler |
DE10346858B3 (de) * | 2003-10-09 | 2005-01-05 | Robert Bosch Gmbh | Sensorelement für einen Messfühler |
DE102004006875A1 (de) | 2004-02-12 | 2005-09-01 | Robert Bosch Gmbh | Abgassensorvorrichtung und Betriebsverfahren |
-
2005
- 2005-11-14 DE DE200510054144 patent/DE102005054144A1/de not_active Withdrawn
-
2006
- 2006-10-16 US US12/093,681 patent/US8828205B2/en not_active Expired - Fee Related
- 2006-10-16 EP EP06807290A patent/EP1952136A1/de not_active Withdrawn
- 2006-10-16 JP JP2008539383A patent/JP4709905B2/ja not_active Expired - Fee Related
- 2006-10-16 WO PCT/EP2006/067432 patent/WO2007054421A1/de active Application Filing
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007061947A1 (de) | 2007-12-21 | 2009-06-25 | Robert Bosch Gmbh | Schneller Breitband-Abgassensor |
DE102007062800A1 (de) | 2007-12-27 | 2009-07-02 | Robert Bosch Gmbh | Verfahren zur Bestimmung einer Gaszusammensetzung in einem Messgasraum |
WO2009083375A1 (de) * | 2007-12-27 | 2009-07-09 | Robert Bosch Gmbh | Verfahren zur bestimmung einer gaszusammensetzung in einem messgasraum, sensorelement und sensoranordnung |
DE102009029690A1 (de) | 2008-09-24 | 2010-03-25 | Robert Bosch Gmbh | Breitband-Sensorelement mit eindeutiger Messkurve |
DE102009026418B4 (de) | 2009-05-22 | 2023-07-13 | Robert Bosch Gmbh | Konditionierung eines Sensorelements in einem Brennerprüferstand bei mindestens 1000°C und Konditionierungsstrom |
Also Published As
Publication number | Publication date |
---|---|
US8828205B2 (en) | 2014-09-09 |
WO2007054421A1 (de) | 2007-05-18 |
JP4709905B2 (ja) | 2011-06-29 |
EP1952136A1 (de) | 2008-08-06 |
US20090152112A1 (en) | 2009-06-18 |
JP2009516158A (ja) | 2009-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed |
Effective date: 20120817 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |